Machine for accurately dispensing multiple unit strip material



April 28, 1964 J. F. CAMPBELL ETAL 3,

MACHINE FOR ACCURATELY DISPENSING MULTIPLE UNIT STRIP MATERIAL 5Sheets-Sheet 1 Filed March 2, 1961 INVENTORS. James E Campbell Jack K.Grimm 35 1 I g o Z RNEY S H Ap 1964 .1. F. CAMPBELL ETAL 3, 3

MACHINE FOR ACCURATELY DISPENSING MULTIPLE UNIT STRIP MATERIAL FiledMarch 2, 1961 5 Sheets-Sheet 2 INVENTORS. James E Campbell Jack K. GrimmA TTORNEYS Apr 1964 J. F. CAMPBELL ETAL 3,130,387

MACHINE FOR ACCURATELY DISPENSING MULTIPLE UNIT STRIP MATERIAL FiledMarch 2. 1961 5 Sheets-Sheet 5 INVENTORS. James F Campbell ATTORNEYSApril 28, 1964 J. F. CAMPBELL ETAL 3,130,837

MACHINE FOR ACCURATELY DISPENSING MULTIPLE UNIT STRIP MATERIAL FiledMarch 2. 1961 5 Sheets-Sheet 4 INVENTORS.

James F Campbell I: Jack K. Grimm ATTORNEYS April 23, 1964 J. F.CAMPBELL ETAL 3,130,887

MACHINE FOR ACCURATELY DISPENSING MULTIPLE UNIT STRIP MATERIAL 5Sheets-Sheet 5 Filed March 2, 1961 INVENTORS. James E Campbell I Jack K.Grimm BY R "awn/ RECTIFIER 42 a 43 ATTORNEYS United States Patent3,130,887 MACHINE FOR ACCURATELY DISPENSING MULTIPLE UNIT STRIP MATERIALJames F. Campbell, Box 842, Grand Junction, Colo., and Jack K. Grimm,Adams County, Colo. (2500 W. 80th Ave., Denver 21, Colo.)

Filed Mar. 2, 1961, Ser. No. 103,951 2 Claims. (Cl. 226-110) Thisinvention relates to devices for the fully automatic and accuratedispensing of units of strip material according to a predetermined,preselected program; and more particularly to an improved fullyautomatic machine for accurately dispensing large predetermined numbersof trading stamps and the like from a strip supply thereof.

Various devices and machines have been known heretofore for dispensingstamps, tickets, and other materials from strip supplies such as rollsor folded sheets. In general, the primary aim of these machines has beento provide mechanical drive mechanism that will move a desired number ofunits from a strip supply through a discharge opening. Some of the drivemechanisms have required pin platen holes, slots, or other undesirablemodification of the stamps before they could be used with the machine.In order to make these machines useful for items such as trading stampsor the like it is desirable that all the stamps required for a singletransaction be rapidly, easily, and, most important, accuratelydispensed by a single machine actuation. In prior devices this hasresulted in provision of complicated interconnected mechanisms ormultiple electrical control means, with commensurate substantialproblems of maintenance and repair. Most of them, particularly those fordispensing trading stamps and the like, have normally required multipleoperator movements and manual operation to dispense the desired numberof units for a given transaction.

A machine according to our inventive concepts provides a simple,relatively inexpensive and easily operated, fully automatic machine fordispensing all of the stamps required for a given transaction with asingle machine actuation.

In carrying out the objects of this invention, in one embodimentthereof, a multiple unit dispensing machine is mounted within a unitaryenclosing structure adapted to house the operating apparatus and havinga keyboard associated therewith, accessible from without the enclosingstructure for ease of operation. The keyboard is comprised of aplurality of separate, manually operable keys arranged in at least twoseries, one of which is marked with indicia indicative of various dollarvalues and the other of which is marked with indicia indicative ofvarious cent values. Each of the keys in each of the series is adaptedto actuate a microswitch interconnected therewith for the purpose ofprogramming subsequent machine operation to deliver a number of units orstamps commensurate with the dollar and cent values of the selectedkeys.

The assembly further includes an electric motor which is interconnectedwith a power source in a circuit which is selectively completed forenergization of the motor for operation of the machine according to theprevious programming. The power takeoff of the motor is interconnectedwith a single cycle control cam in operative relation with acommutator-rotary armature assembly. Brake and clutch means are includedand are energized by commands from the commutator-rotary armatureassembly to selectively cause rotation of one or both of at least a pairof calibrated stamp feeding drums. The brake and clutch means operate torotate the respective drums during only a portion of the control camcycle in response to command related to the previously selected programto accurately deliver the number of units or stamps commensurate withthe dollar and cent value keys selected. Further details of constructionand operation of a machine according to our concepts are discussed indetail hereafter.

One very desirable feature of our invention, not found in prior artarrangements, is that operator accidents or carelessness in programmingmay be corrected before the dispensing operation begins.

It is another feature and object of this invention to provide animproved stamp dispensing machine of relatively simple constructionwhich is reliable, accurate, and easy to operate; and which is fullyautomatic to dispense all of the stamp units necessary for a giventransaction in a single machine actuation.

It is also an object of this invention to provide an improved stampdispensing machine constructed and arranged so that an operator mayrapidly and easily program it for subsequent operation to dispensestamps from single and multi-stamp supplies in a single machineactuation to secure the required number of stamps for a giventransaction. And it is also an object of this invention to provide amachine which is easily operated by unskilled persons with a minimum ofinstruction.

Many other objects and advantages of this invention will become readilyapparent to those skilled in the art from the following description ofthe appended exemplary drawings. In these drawings:

FIG. 1 is an isometric view on a reduced scale of a machine according toour invention within its unitary housing and illustrating the outsideaccessibility of the keyboard;

FIG. 2 is a top view of the assembly of FIG. 1 with the cover removedand showing the relationship between parts;

FIG. 3 is an enlarged top view of the assembly of FIG. 2 with thekeyboard removed, further showing the relationship of operating parts ofthe assembly;

FIG. 4 is a fragmentary side elevation on an enlarged scale of the limitswitch-commutator arm assembly of the apparatus of FIG. 3;

FIG. 5 is a side elevation in partial section taken along the line 5-5of the apparatus of FIG. 3;

FIG. 6 is a fragmentary side elevation in partial section taken alongthe line 66 of FIG. 3, and is indicative of a novel commutatordistributor which we prefer to use;

FIG. 7 is a fragmentary side elevation, in partial section and on anenlarged scale, of key-microswitch units usable with the keyboard;

FIG. 8 is a fragmentary side elevation in partial section of one of thekey-microswitch units and related structure taken generally along theline 8-8 of FIG. 7;

FIG. 9 is a fragmentary side elevation of the calibrated feed drum andsupply assembly of the apparatus shown in FIGS. 2, 3 and 5;

FIG. 10 is a fragmentary side elevation taken generally along the line1010 of the apparatus of FIG. 9; and

FIG. 11 is a schematic wiring diagram of the circuit by which theapparatus of FIGS. 2, 3, and 5 operates to dispense a given number ofstamps according to a predetermined selected program.

Before describing the drawings in detail we wish it understood that theyare schematic in many respects and but exemplary of assembly andoperation according to our inventive concepts and that the spirit andscope of our invention is to be as defined in the hereafter set forthclaims.

We prefer to provide a streamlined unitary housing for the operatingassembly, such as that shown in FIG. 1, which is comprised of a lower orbase portion 20 and a forwardly sloping, complementary cover 2 1.Centrally of sloping section 22 of the cover is an elongated,

generally rectangular aperture 23 allowing access to the keyboard 24from without the housing. The keyboard is comprised of a plurality ofkeys 25 arranged in a group of series, such as the dollar value series26 and the cent value series 27. Preferably, a third series is alsoprovided for multiple dollar values, such as $10, $20, etc., indicatedby reference numeral 28. The lower key29 of each of the series is aclearing key to deactuate the other keys of the respective seriesandtheir associated key switches, as described later. The remaining key30 is a machine actuating key. A feed or delivery chute 35 opens fromthe base portion for delivery of stamps. It is to be understood thatthechute may be otherwise located as desired, although we prefer to haveit facing an operator. Snap latches 36 or the like are provided tomaintain the upper and lower housing sections 20 and 21 as a'unitaryassembly. A lock may be provided for the housing sections to preventpilferage, etc., when desired, although such has not been shown in thedrawings for purposes of simplicity. An off-on switch 37 and fusehousing 38 are located on the base section 20 in a position readilyaccessible to an operator. And we have schematically shown at 39 a cordor conduit for supplying power to the apparatus.

In FIG. 2 the cover 21 has been removed, and in FIG. 3 the keyboard 24has been removed from its supporting brackets 91 and 92 to provide aview of the relationship between the keyboard and the other operatingparts of the apparatus. Although a schematic terminal strip 90 is shownin FIG. 3, wiring, etc., has not been shown in detail in either FIG. 2or FIG. 3 for purposes of simplicity and an easier understanding of theapparatus therein shown. The schematic wiring diagram of FIG. 11 isthought to provide sufiicient disclosure of wiring and electricalinterconnection between parts, and the other drawings are intended toshow possible mechanical and spatial relationship between parts.

Briefly describing the interaction between parts, by suitablemanipulation of the switch 37, power is Supplied through conduit 39 totransformer 40 which is in circuit with the two rectifiers 42 and 43.Rectifiers 42 and 43 provide direct-pulsating current from thealternating current supplied therethrough for machine operation. Therectifiers operate continuously and in concert, independent of machineprogramming; and rectifier 43 is the rectifier for cent value dispensingand rectifier 42 for dollar value dispensing. Of course, suitable vacuumtubes, etc., or a single rectifier, can be provided as the rectifyingmeans if desired. The rectifier 42 (FIG. 3), with power from thetransformer 40 supplied therethrough, is adapted to energize a dollarvalue brake and clutch assembly 45; and rectifier 43, in a similarmanner, is adapted to energize the cent value brake and clutch assembly46.

When the machine is to dispense stamps, after keyboard programming, thekey 30 is depressed and AC. relay 44 is closed to energize the motor 41;and by rotation of the limit switch cam 47 carried on the power takeofifshaft 75 (see FIG. 4), through suitable gear motor reducing means (notshown), its lobe 48 closes switch 49 at start of cycle, thereby allowingrelease of key 30 while maintaining a closed circuit (see FIG. 11). Theforegoing also partially completes a circuit to coils in the clutchportions 50 and 51 of the respective assemblies 45 and 46. The shaft 75carries cam 47 and fixed commutator arms 55 with brushes 56 attachedthereto and rotates them over the face of the commutator distributorassembly 57 (see FIG. 6, described later). During rotation, the brushescontact progressive segments on the commutator distributor assembly 57.One of the segments has been programmed by key switch operation toenergize the dollar value D.C. relay 60 and another to energize the centvalue D.C. relay 61. Upon energization of these D.C. relays, therespective brake portions 70 and 71 of assemblies 45 and 46 arereleased; and the respective clutch portions 50 and 51 are energized tothereby, through suitable gearing (explained below), rotate the dollarvalue drum 72 ,and/ or cent value drum 73.

Explaining the operation of parts in more detail, when motor 41 has beenenergized by depressing the operating key 30, the power takeoff" shaft75 begins rotation of the limit switch cam 47 and gears 76 and 76afixedly interconnected therewith. Rotation of gears 76 and 76a drivesgears 77 and 78 of clutch portions 51 and 50. The gears 77 and 78commensurately rotate shafts 79 and 80 and clutch discs 79:: and 80a.Coils associated with the respective clutch discs, in response to theabove mentioned program, attract the respective armatures 81 and 82. Thearmatures 81 and 82 drive gears 85 and 86 through shafts 81a and 82a.The gear 85 is adapted to drive the dollar value drum 72 through gear87x and its shaft 87; and gear 86 similarly drives cent value drum 73through gear 88x and its shaft 88. The shaft 88 is annular andencompasses shaft 87 so that they are independently operable. Afterstamp dispensing pursuant to programming, the armatures 81 and 32 arereleased from the clutch discs 80a and 79a and are attracted to brakeportions 70 and 71 to stop rotation of the respective drums.

A suitable multi-unit strip supply 72a feeds the dollar value drum 72and single unit strip supply 73a similarly feeds the cent value drum 73.Thumb screws 72b and 73b are for the purpose of retaining the stripsupplies in position on a common shaft.

Strips of stamps or the like are drawn from the strip supply through thetension and guide assembly 96 onto the calibrated surfaces of the drums,such as the surface 97 of the cent value drum 73, as shown in FIG. 5.Adjacent to the forward or dispensing end of the drum is an assembly 99to assure frictional feeding contact between the surface 97 and thestrip supply 95. Assembly 99 (FIGS. 9 and 10) is comprised essentiallyof a pair of tension rollers 100 and 101 having a rubber-like surfacethereon and which are universally mounted to obtain a two-point frictioncontact between such as surface 97 and the strip supply 95. There arefour such tension rollers mounted in pairs on shafts 102 and 103 (seeFIG. 2) to thereby provide a pair on each of the 72 (and 73. Therespective opposite ends of the shafts 102 and 103 are pivotally mountedthrough common plates 104. Centrally of the plate 104- is a link pin 105supporting that plate in pivotal relation with an end of theintermediate plate 106. The opposite end of intermediate plate 106 isconnected through a pivot link pin 107 with a rigid upright support 108.A resilient member or spring 109 is interconnected between the pivot pin105 and a fixed portion 110 of the apparatus. The foregoinginterrelation of plates with the resilient member 109 and rigid supports108 and. 110 provides a universal-like movement relative to the surfaceof the respective drums; and provides two-point contact on the stripmaterial 95 to assure a tight friction-a1 driving engagement between thedrum surfaces and the strip material when the drums rotate.

As above mentioned, the keys 25 program machine operation. Each of thekeys is interconnected with a mioroswitch assembly (FIGS. 7 and 8) andare comprised essentially of a head portion 25a and an elongated shaftwhich pass through an opening 116 in the keyboard 24 and downwardlythrough the switch assembly and an aperture in lower housing 117.Substantially centrally of each of the series of keys is a common plate118. Adjacent each of the shafts 115 in the plate 118 is a cam aperture119 which is adapted to selectively hold the lower bar 120 of the switchin upper and lower programrm'ng positions. The upper bar 121 (best shownin FIG. 8) when in a switch-closed or programmed position, interactswith cam 122 of switch 123 to close contacts 124 thereof. In FIG. 7 theleft and rightahand keys and their associated rnicroswi-tches are shownin an open position and the intermediate one in a closed or programmedposition. When programmed, the lower end of the shaft 115 is held in avertical position relative to the lateral portions of the switch by thespheres 125; and is maintained in its programmed position by one of thecam apertures 119. Further, when the lower end of shaft 115 is passedbetween the spheres 125, no further keys may be depressed in that seriesWithout releasing the previously programmed key, i.e., if another key isdepressed it will move the plate 118, allowing upward movement of anyother depressed key by action of its resilient member or return spring126. To clear the keyboard and change the program of subsequent machineoperation, the clearing keys 29 (FIG. 1) are depressed to move plates118 (to the right as shown in FIG. 7) thereby allowing the springs 126to raise depressed keys to a non-programmed or open position. Ifdesired, a solenoid may be included in the apparatus to automaticallymove the plate 118 at the end of a given machine operation to clear thekeyboard, instead of the keys 29.

When the operator has programmed his keyboard by depressing a key ofvarious of the series of keys, the switches 123 associated therewith,one each, completes a circuit with one of the segmented portions of theabove mentioned commutator distributor surface (FIG. 6). The segmentedseries 130 is the dollar value series and the series 131 is the centvalue series. The series 131 is comprised of nine active segments andone dead or inoperative segment 1 31a. The series 130 is comprised oftwenty live segments and one dead or inoperative segment 130a. Beforeoperation, brushes 56 are in contact with the dead segments and untilrotation of the cam 47 and brushes 56 there will be no circuit completedthrough the live segments. A .brush 56 is adapted for rotational contactwith each of the respective dollar and cent segmented series duringrotation of the cam 47, and another of the brushes 56 of each of thesets of brushes carried by the opposed commutator arms 55 is in contactwith one of the continuous contact strips 132 and 133. Of course, it isto be understood there could be a single continuous contact strip if sodesired. The pair of brushes on each of the opposed arms and insulatedfrom the arms are interconnected as by a conducting wire 66a, shown bestin FIG. 3.

The surfaces 97 of the drums 72 and 73 are calibrated or coded todeliver a given number of stamp units per degree of rotation based onthe length (or width) of the units; and the angular position of thesegments of series 130 and 13 1 (in operative relation to the brushes 56and cam 47) provide the operating control for the number of degrees ofdrum rotation. For example, consider segments B and C of FIG. 6 (thedead segments) and segment A as being programmed by the keyboard.Segment A is the ninth segment of the dollar value series 130 and isprogrammed by the $9.00 key of the dollar series. Upon motorenergization as explained above, the cam 47, and thus the commutatorarms and brushes, rotate in a clockwise direction as viewed in FIG. 6.Assume none of the cent series 13-1 is programmed. Until a brush 56contacts segment A, the drum 72 will not rotate, and no stamps will bedispensed. However, when segment A is reached, relay 60 is energized (asexplained later with reference to the circuit diagram), which completescircui-ts to release the dollar value brake 70, actuate clutch 50 toattract and rotate armature 81, etc., and drive the drum 72. The drum 72then rotates and will continue to rotate until the dead segment C isagain reached, which coincides with opening of the limit switch 49. Theopening of limit switch 49 results in deenerg-izing relay 60, openingcontact 146 to deenergize the coil of clutch 50', releasing armature 81.Deenergizing relay 60 also closes contact 135' to operate the brake 70to stop drum rotation. In a similar manner, upon programming, cent valuedrum 73 cooperates in operation with the segmented series 131.

In operation of a preferred embodiment, our dollar value drum deliversa'double length of multistamp units (live stamps each unit) per 36 ofdrum rotation, each single multistamp unit being valued at 50; and thecent value drum delivers a single 10 value stamp per 18 of rotation. Ofcourse, other angular relationships may be utilized in the practice ofour inventive concepts as desired.

In operation (FIG. 11), the off-on switch 37 is closed, therebysupplying power to the apparatus. When it is desired to dispense a givennumber and value of stamps from the machine, various of the keys of thekeyboard assembly 24 are depressed to program subsequent machineoperation. In FIG. 11 the various keys have been shown in two separateschematic groups and given numerical designations indicative of dollarand/ or cent valuations from 10 through in units of 10; and $1.00through $20.00, inclusive. With the switch 37 in the on position, poweris supplied through transformer 49 and the rectifiers 42 and 43 whichenergize, respectively, dollar brake 70 and cent brake 71 throughnormally closed contacts 135 and 136, placing the dollar brake 70 andcent brake 71 in drum-lock position. When the operating key 30 isactuated, the A.C. relay 44 is energized to close the relay contacts 137and 138 and energize the motor 41. After fractional rotation of themotor shaft and cam 47 the limit switch 49 is closed, allowing releaseof the operating key 30 since switch 49 maintains a closed motorcircuit. Commensurate with rotation of the cam 47 the commutator arms 55and brushes 56 are rotated over the segmented series and 131 and thecontinuous contact strips 132 and 133. When the brushes riding thesegmented series contact a segment programmed by the key microswitchoperation, the dollar value and cent value D.C. relays 60 and 61 areenergized to open relay contacts 135 and 136 and close relay contacts146 and 147. This releases the brakes 70 and 71 and engages the clutches50 and 51. Also, upon energization of the DC. relays 60 and 61 the relaycontacts 139 and 140 are closed. Relay contacts 139 and 140 maintainclosed circuits after the brushes 56 have passed respective programmedsegments. With the foregoing combination of closed relay contacts, thecoils of clutches 50 and 51 attract and engage the armatures 81 and 82to thereby drive the associated gearing above described for rotation ofthe calibrated dispensing drums 72 and 73.

Upon completion of a single rotation or cycle of the cam 47 the switch49 is opened, which causes deenergization of the motor relay, i.e. A.C.relay 44. Following deenergization of relay 44 and cessation of motoroperation, D.C. relays 60 and 61 are deenergized, relay contacts 137,138, 139, and 140 are opened, and relay contacts 146 and 147 of theclutches 50 and 51 are opened, while relay contacts 135 and 136 close tooperate brakes 7 0 and 71 to stop drum rotation.

It is obvious from the foregoing that the cam 47 must be calibrated oradjusted in relation to both the surfaces of the drums 72 and 73 and tothe angular position of the various segments of the segmented series 130and 131 such that a single rotation or cycle produces drum operationsufiicient for dispensing all of the stamps necessary.

Although we have shown the keyboard 24 as enclosed within the samehousing as the operating elements of the device, this is not alwaysnecessary. One very attractive arrangement within our concepts has thekeyboard positioned distant from the actual dispensing apparatus. Suchan arrangement is particularly suited for the modern supermarketoperation Where the keyboard is positionable closely adjacent, orinterconnected with, a cash register; and a cord or suitable electricconduit is led therefrom to the dispensing assembly, which may bepositioned adjacent the loading or packaging station. Thus, the checkoutclerk totals the cost of the merchandise, thereby arriving at a dollarand cent value which will actuate a series of switches similar to thoseabove described to thereby program the operation of the machine. Andupon depression of an operating key (which might be a key of the cashregister), the dispensing portion of the apparatus will issue therequired number of stamps for customer removal.

Also, although it has not been shown in the drawings, we may provide ameter with our apparatus which is adapted to maintain a runningcalculation of the number of stamps dispensed from the machine, thusinforming the user of the number of stamps remaining in the machine andindicating the necessity of reloading.

From the foregoing it is believed clear that many changes in design andconstruction may be made; and equivalent parts may be substituted in thepractice of our inventive concepts. Having thus described our inventionwith suificient particularity and detail as to enable those skilled inthe art to practice it, What we desire to have protected by LettersPatent is set forth in the following claims.

We claim:

1. A machine for dispensing stamps and the like from strip suppliesthereof, comprising an enclosing structure having a stamp deliveryopening, at least a pair of rotatable drum members, each engaging a saidstrip of stamps for moving it toward said opening, a keyboard assemblyhaving a plurality of keys arranged for access exteriorly of saidenclosing structure, said keys being arranged in at least two series,one of which is coded in dollar values and the other in cent values,each said key inclusive of switch means adapted for programmingsubsequent machine operation upon machine actuation to energize andoperate an assembly mounted in said housing arranged for selectiveoperation of one and both of said drums, said assembly including anelectric motor interconnected with a power source, control means, saidmotor adapted to operate said control means during its energization,said control means carrying armature brushes arranged in operativerelation with a commutator, said commutator inclusive of a plurality ofseries of spaced lugs and at least one continuous electrical conductorall insulated from each other, the brushes of said control means beingarranged in at least two independent circuits, one of said circuitsinterconnected with the dollar value key switches and the other with thecent value key switches, and one each of each of the pair of brushesbeing in contact with the continuous conductor during movement of saidcontrol means, and the other brush adapted upon contact with one of saidlugs in circuit with a previously programmed key switch to energize oneof at least a pair of brake and clutch means one each of which isinterconnected between said control means and one of said drums, andupon energization, each of said brake and clutch means adapted to rotatea drum a peripheral distance equal to the length of a number of stampsfor delivery thereof through said opening as dictated by the previouskeyboard program, and means on said keyboard arranged to actuate themachine.

2. The machine of claim 1 in which the control means includes a rotarycam driven by said motor and adapted 'to cause deenergization of saidmotor after one cam rotation.

References Cited in the file of this patent UNITED STATES PATENTS2,806,693 Seeley Sept. 17, 1957 2,937,554 Nathan May 24, 1960 3,006,538Deutsch Oct. 31, 1961

1. A MACHINE FOR DISPENSING STAMPS AND THE LIKE FROM STRIP SUPPLIESTHEREOF, COMPRISING AN ENCLOSING STRUCTURE HAVING A STAMP DELIVERYOPENING, AT LEAST A PAIR OF ROTATABLE DRUM MEMBERS, EACH ENGAGING A SAIDSTRIP OF STAMPS FOR MOVING IT TOWARD SAID OPENING, A KEYBOARD ASSEMBLYHAVING A PLURALITY OF KEYS ARRANGED FOR ACCESS EXTERIORLY OF SAIDENCLOSING STRUCTURE, SAID KEYS BEING ARRANGED IN AT LEAST TWO SERIES,ONE OF WHICH IS CODED IN DOLLAR VALUES AND THE OTHER IN CENT VALUES,EACH SAID KEY INCLUSIVE OF SWITCH MEANS ADAPTED FOR PROGRAMMINGSUBSEQUENT MACHINE OPERATION UPON MACHINE ACTUATION TO ENERGIZE ANDOPERATE AN ASSEMBLY MOUNTED IN SAID HOUSING ARRANGED FOR SELECTIVEOPERATION OF ONE AND BOTH OF SAID DRUMS, SAID ASSEMBLY INCLUDING ANELECTRIC MOTOR INTERCONNECTED WITH A POWER SOURCE, CONTROL MEANS, SAIDMOTOR ADAPTED TO OPERATE SAID CONTROL MEANS DURING ITS ENERGIZATION,SAID CONTROL MEANS CARRYING ARMATURE BRUSHES ARRANGED IN OPERATIVERELATION WITH A COMMUTATOR, SAID COMMUTATOR INCLUSIVE OF A PLURALITY OFSERIES OF SPACED LUGS AND AT LEAST ONE CONTINUOUS ELECTRICAL CONDUCTORALL INSULATED FROM EACH OTHER, THE BRUSHES OF SAID CONTROL MEANS BEINGARRANGED IN AT LEAST TWO INDEPENDENT CIRCUITS, ONE OF SAID CIRCUITSINTERCONNECTED WITH THE DOLLAR VALUE KEY SWITCHES AND THE OTHER WITH THECENT VALUE KEY SWITCHES, AND ONE EACH OF EACH OF THE PAIR OF BRUSHESBEING IN CONTACT WITH THE CONTINUOUS CONDUCTOR DURING MOVEMENT OF SAIDCONTROL MEANS, AND THE OTHER BRUSH ADAPTED UPON CONTACT WITH ONE OF SAIDLUGS IN CIRCUIT WITH A PREVIOUSLY PROGRAMMED KEY SWITCH TO ENERGIZE ONEOF AT LEAST A PAIR OF BRAKE AND CLUTCH MEANS ONE EACH OF WHICH ISINTERCONNECTED BETWEEN SAID CONTROL MEANS AND ONE OF SAID DRUMS, ANDUPON ENERGIZATION, EACH OF SAID BRAKE AND CLUTCH MEANS ADAPTED TO ROTATEA DRUM A PERIPHERAL DISTANCE EQUAL TO THE LENGTH OF A NUMBER OF STAMPSFOR DELIVERY THEREOF THROUGH SAID OPENING AS DICTATED BY THE PREVIOUSKEYBOARD PROGRAM, AND MEANS ON SAID KEYBOARD ARRANGED TO ACTUATE THEMACHINE.